The iPhone Dev-team has released RedSn0w 0.9.12b2 to jailbreak iOS 5.1.1 untethered on iPhone, iPad and iPod Touch. Redsn0w 0.9.12b2 features the same exploit found in Absinthe 2 and Rocky Racoon 5.1.1 untether jailbreak. It also includes the a new feature to restore SAM unlocking tickets if you happened to save it while it was available.

Hit the jump to download Redsn0w 0.9.12b2 and other details…

Redsn0w 0.9.12b2 can jailbreak A5 devices including iPhone 4S, the new iPad 3 and iPad 2. It can also be used to jailbreak A4+earlier devices in one of two ways:

backup/restore method similar to Absinthe and cinject

its traditional limera1n-based ramdisk install. If you have a lot of media on your A4 device (music, movies, TV shows, etc), then the ramdisk method is preferrred because it avoids any possibility of later problems related to syncing to iCloud (including Photo Stream and Music Match). The ramdisk method is not available for A5 devices or later because limera1n can’t be used. If you’d like to use redsn0w’s ramdisk method, just be sure to put the A4 device in DFU or Recovery mode before starting redsn0w (otherwise it will immediately start to use the backup/restore method).

Redsn0w 0.9.12b1 also brings a new features specifically for those who have got SAM unlock tickets saved. If you’ve unlocked your iPhone with SAM unlocking method and have saved the unlocking ticket, you can easily restore those tickets using Redsn0w 0.9.12b1:

We’ve also added a new redsn0w feature specifically for those who got in on the SAM unlock: you can now include your SAM tickets as part of your initial ramdisk jailbreak of iPhone4 or earlier, or alternatively you can upload your SAM tickets to any device after its been jailbroken. redsn0w accepts either the individual SAM activation ticket plist file, or the entire zip file created by redsn0w’s “Backup” button. As usual, redsn0w continues to cover all of its previous jailbreaks and untethers (so redsn0w-0.9.12b1 covers everything from 5.1.1 all the way back to 4.1).

Redsn0w 0.9.12b2 Supports:

Download Redsn0w 0.9.12b2

Redsn0w 0.9.12b2 is available for both Windows and Mac OS X. You can download Redsn0w 0.9.12b1 from the links below…

Update #1: Starting with version 0.9.12b2, redsn0w will now explicitly ask users with limera1n-able devices whether they want to inject rocky-racoon using the DFU ramdisk method or the backup/restore method (the ramdisk method is better for those with lots of media on their device that would create very large backups, and it’s required for those with unactivated iPhones). If you’ll always want to use limera1n, you can select that in the Preferences pane. It also fixes an iBooks issue on old-bootrom 3GS iPhones, and provides more useful error messages when things go wrong.